1 Inch Threaded REF#: 173420 Bmx Threaded Steel Headset 22.2x32.5x27mm Black. Neco Steerer OD: 1 Inch (25.4mm)Cup: 32.5mmSize: 1 Inch (22.2mm)Race: 27Material: SteelStyle: BmxColor: BlackType: ThreadedBrand: Neco Sign In to view pricing and availability